Chapter 1: General Registration Information. Edit, sign, and share vehicle purchase agreement with deposit online.No need to install software, just go to DocHub, and sign up instantly and for free. A car (vehicle) purchase deposit receipt is written proof that a potential buyer of a car has supplied the seller with a deposit. The Sheriff can execute the Writ of Sale on behalf of the Judgment Creditor. California Bill of Sale Forms (3). A California bill of sale is an official document used to record the sale of personal property between a buyer and seller. ("Seller") agrees to sell to. Filling out this form is straightforward and essential for vehicle transactions.